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Lead-acid batteries include several individual cells each having a voltage of 2V.
The open lead battery is rugged but requires regular maintenance.
In addition, they are not waterproof and must be installed in a well ventilated area.
In fact, when an open lead battery is charged, it releases oxygen and hydrogen, so it is obligated to place it in a ventilated place.
Be careful not to leave it in the open air, because in extremely cold conditions, it is very sensitive to cold and can freeze!
Depending on its use (especially its discharge), open lead batteries may be more than 10 years old.
In fact, the battery life of 80% discharge is shorter than that of 20% discharge.
They are ideal for irregular use, such as in a second home